Home / 19,184.97-28,781.39-8,091.66

Finding the Fourth Proportional to 19,184.97, 28,781.39 and 8,091.66

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Solution

The fourth proportional to 19,184.97, 28,781.39 and 8,091.66 is: 12,139.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,184.97 : 28,781.39 = 8,091.66 : x
  2. Step 2: Convert to fraction form
    19,184.97/28,781.39 = 8,091.66/x
  3. Step 3: Cross multiply
    19,184.97x = 28,781.39 × 8,091.66
  4. Step 4: Simplify right side
    19,184.97x = 232,889,222.21
  5. Step 5: Solve for x
    x = 232,889,222.21/19,184.97
  6. Step 6: Final answer
    x = 12,139.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.